External video????

Does anyone know of a way to connect any sort of external video camera to a droid? OR even heard of it being done? Small external video camera are very inexpensive, but can't provide a LIVE stream. I suspect that this is not possible without some physical rearrangement of the phone's circuit board (like removing the connection with the built in camera and splicing in an external connection) but just thought I'd post in the hope that someone has some info. I'm especially interested if anyone has tinkered with a hardwired external camera, along the lines of what I mentioned above.
Thanks and hopefully I posted this in the appropriate forum!